Home / 76,979,563.92-115,486,579.38-25,860,188.52

Finding the Fourth Proportional to 76,979,563.92, 115,486,579.38 and 25,860,188.52

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Solution

The fourth proportional to 76,979,563.92, 115,486,579.38 and 25,860,188.52 is: 38,796,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979,563.92 : 115,486,579.38 = 25,860,188.52 : x
  2. Step 2: Convert to fraction form
    76,979,563.92/115,486,579.38 = 25,860,188.52/x
  3. Step 3: Cross multiply
    76,979,563.92x = 115,486,579.38 × 25,860,188.52
  4. Step 4: Simplify right side
    76,979,563.92x = 2,986,504,714,296,744.50
  5. Step 5: Solve for x
    x = 2,986,504,714,296,744.50/76,979,563.92
  6. Step 6: Final answer
    x = 38,796,072.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.